77f2a3737cab01bc454786bc7c35d73fc547378e554154863b906ca168793c0e

General

Target
rPurchaseOrder_PO19202409.exe
Size 1.1MB
Sample241210-bc75rssqaq
SHA256 77f2a3737cab01bc454786bc7c35d73fc547378e554154863b906ca168793c0e
MD5 dd705e112faf36dd14532f129246d715
SHA1 37504855ae142cd21417baa3701e0288517a0d76
SHA512 949c674535773b03ce6bee2deba1afa4e14d22e0f44e31c24d125db2b140f84cc89b62a48a6bc75404210abe64d433c958fb8b5be63d50568d3b875a565de2f3
SSDEEP 24576:lu6J33O0c+JY5UZ+XC0kGso6FaT0pEPHzVwWY:nu0c++OCvkGs9FaT0pEPT9Y
MD5 SHA1 SHA512 SSDEEP

Score

6^/10

collection discovery

Malware Config

Signatures

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-3551809350-4263495960-1443967649-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe
Key opened	\REGISTRY\USER\S-1-5-21-3551809350-4263495960-1443967649-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe
Key opened	\REGISTRY\USER\S-1-5-21-3551809350-4263495960-1443967649-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe

Looks up external IP address via web service 1 IoCs

Uses a legitimate IP lookup service to find the infected system's external IP.

flow	ioc
4	checkip.dyndns.org

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2368 set thread context of 2176	2368	rPurchaseOrder_PO19202409.exe	30

System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	rPurchaseOrder_PO19202409.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	RegSvcs.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
2176	RegSvcs.exe

Suspicious behavior: MapViewOfSection 1 IoCs

pid	Process
2368	rPurchaseOrder_PO19202409.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2176	RegSvcs.exe

Suspicious use of FindShellTrayWindow 2 IoCs

pid	Process
2368	rPurchaseOrder_PO19202409.exe
2368	rPurchaseOrder_PO19202409.exe

Suspicious use of SendNotifyMessage 2 IoCs

pid	Process
2368	rPurchaseOrder_PO19202409.exe
2368	rPurchaseOrder_PO19202409.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 2368 wrote to memory of 2176	2368	rPurchaseOrder_PO19202409.exe	30
PID 2368 wrote to memory of 2176	2368	rPurchaseOrder_PO19202409.exe	30
PID 2368 wrote to memory of 2176	2368	rPurchaseOrder_PO19202409.exe	30
PID 2368 wrote to memory of 2176	2368	rPurchaseOrder_PO19202409.exe	30
PID 2368 wrote to memory of 2176	2368	rPurchaseOrder_PO19202409.exe	30
PID 2368 wrote to memory of 2176	2368	rPurchaseOrder_PO19202409.exe	30
PID 2368 wrote to memory of 2176	2368	rPurchaseOrder_PO19202409.exe	30
PID 2368 wrote to memory of 2176	2368	rPurchaseOrder_PO19202409.exe	30

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-3551809350-4263495960-1443967649-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-3551809350-4263495960-1443967649-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe

C:\Users\Admin\AppData\Local\Temp\rPurchaseOrder_PO19202409.exe
"C:\Users\Admin\AppData\Local\Temp\rPurchaseOrder_PO19202409.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: MapViewOfSection
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
PID:2368
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
  "C:\Users\Admin\AppData\Local\Temp\rPurchaseOrder_PO19202409.exe"
  2⤵
  - Accesses Microsoft Outlook profiles
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - outlook_office_path
  - outlook_win_path
  PID:2176

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Email Collection

1

T1114

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

memory/2176-12-0x0000000000400000-0x000000000041E000-memory.dmp

Download

memory/2176-16-0x0000000000400000-0x000000000041E000-memory.dmp

Download

memory/2176-14-0x0000000000400000-0x000000000041E000-memory.dmp

Download

memory/2176-17-0x000000007431E000-0x000000007431F000-memory.dmp

Download

memory/2176-18-0x0000000074310000-0x00000000749FE000-memory.dmp

Download

memory/2176-19-0x000000007431E000-0x000000007431F000-memory.dmp

Download

memory/2176-20-0x0000000074310000-0x00000000749FE000-memory.dmp

Download

memory/2368-11-0x0000000000700000-0x0000000000B00000-memory.dmp

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads